- She's struggling with finding bread, the main task that is defining her at that moment (the writer goes around the idea that on fairy tales the task is what the defines the character, and no fulfillment of task means no character), so she's struggling with the definition of herself too

> “I can see the wheat,” she says, “growing in the field from outside my window.” I watch a video on how to harvest wheat. I can’t believe I have no machete. I can’t believe I spent so many hours begging universities to hire me,

- For me this means that she wants to get bread and she discovers that for obtaining the wheat you need something to cut it, like a machete. A machete is a tool for cutting, for removing obstacles. And she doesn't have a machete, so she cannot remove those obstacles for the position, like the universities interviews, so she cannot reach the position as she cannot get the bread.

Putting it the other way around: you cannot just beg to the wheat to get the bread, you need a machete. She doesn't have it. She doesn't have what is needed to get the position.

I think the relation is not too obvious and I may be wrong, but I interpret it this way.